I’ll admit something slightly embarrassing.

This has kinda sorta been the case for quite a while now, people have been installing Steam Deck versions of SteamOS on various AMD machines with various levels of success. It was also acknowledged by Valve, with an “at your own risk” policy.

But idiot me thought “AMD platforms” means the CPU needs to be AMD. So just FYI to anyone in the same boat: no, Intel CPUs should work just fine. The only thing they meant is that the GPU has to be AMD. All the other components can kind of be whatever the heck you want. Including CPU, as long as it’s x86-64.

But actually, I understand they now also support Intel GPUs. I think I’ve read that somewhere. So at this point it’s pretty clear that you can use anything expect nvidia.